Patents Assigned to Nippon Light Metal Company, Ltd.
  • JOINING METHOD
    Publication number: 20200078883
    Abstract: Provided is a joining method that can prevent a plastic flowing material from flowing out from a butt section and that can reduce the thickness and weight of metal members. The joining method is for joining a first metal member and a second metal member by using a rotary tool comprising a stirring pin, and is characterized in that: the stirring pin comprises a flat surface perpendicular to the rotation axis of the rotary tool and comprises a protruding section protruding from the flat face; and in a friction stirring step, the flat surface is brought into contact with the first metal member and the second metal member, and a front end face of the protruding section is inserted deeper than an upper overlapping section to join an upper front butt section and the upper overlapping section.
    Type: Application
    Filed: October 12, 2017
    Publication date: March 12, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Nobushiro SEO, Hisahi HORI
  • Method for manufacturing heat exchanger plate and method for friction stir welding
    Patent number: 10518369
    Abstract: Certain embodiments relate to a heat exchanger plate capable of performing friction stir welding at a deep position of the heat exchanger plate, and improving air-tightness and water-tightness. A method may include a lid groove closing process to insert a lid plate into a lid groove formed at a periphery of a concave groove opening to a surface of a base member. The method may also include a primary joining process to perform friction stirring while relatively moving a primary joining rotary tool equipped with a stirring pin along a butting portion of a side wall of the lid groove and a side surface of the lid plate. In the primary joining process, the rotating stirring pin may be inserted into the butting portion, and the friction stirring may be performed in a state of only the stirring pin being in contact with the base member and the lid plate.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: December 31, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Aluminum alloy material for use in thermal conduction application
    Patent number: 10508329
    Abstract: An aluminum alloy material for use in thermal conduction to which improved castability has been imparted by silicon addition. It has improved thermal conductivity and improved strength. The material has a composition containing 7.5-12.5 mass % Si and 0.1-2.0 mass % Cu, the remainder being Al and unavoidable impurities, wherein the amount of copper in the state of a solid solution in the matrix phase is regulated to 0.3 mass % or smaller. The composition may further contain at least 0.3 mass % Fe and/or at least 0.1 mass % Mg, provided that the sum of (Fe content) and (content of Mg among the impurities)×2 is 1.0 mass % or smaller and the sum of (Cu content), (content of Mg among the impurities)×2.5, and (content of Zn among the impurities) is 2.0 mass % or smaller.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: December 17, 2019
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Hiroshi Horikawa, Masahiko Shioda
  • METHOD FOR MANUFACTURING LIQUID-COOLED JACKET
    Publication number: 20190358740
    Abstract: A jacket main body is formed of a first aluminum alloy. A seal body is formed of a second aluminum alloy. The first aluminum alloy is higher in hardness than the second aluminum alloy in material type. A method includes: a preparing step of forming on an peripheral wall part a step part having a step bottom surface and a step side surface obliquely rising; a mounting step of mounting the seal body on the jacket main body to form a first butt portion and putting the step bottom surface and a back surface of the seal body on each other to form a second butt portion; a main joining step of performing friction stir welding while only the stirring pin of the rotary tool rotating contacts with only the seal body.
    Type: Application
    Filed: June 13, 2017
    Publication date: November 28, 2019
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO
  • Method of manufacturing liquid-cooled jacket and liquid-cooled jacket
    Patent number: 10471557
    Abstract: A method of manufacturing a liquid-cooled jacket, includes: a placing step for placing a sealing body on a jacket body; a first primary joining step for performing frictional stirring by moving a primary joining rotary tool along a first abutment portion where a step side surface of a peripheral wall stepped portion and an outer peripheral side surface of the sealing body abut on each other; and a second primary joining step for performing frictional stirring by moving the primary joining rotary tool along second abutment portions in each of which a step side surface of a columnar support stepped portion and a hole wall of a hole abut on each other.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 12, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Support frame for pellicle
    Patent number: 10437142
    Abstract: A support frame for a pellicle includes a frame body made of an aluminum alloy. The frame body has: a top surface onto which a pellicle film is bonded; and an underside surface onto which a transparent substrate is bonded. A material of which the frame body is made has a Young's modulus larger than that of which the transparent substrate is made. The structure described above makes it possible to reduce deformation of the transparent substrate.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 8, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Akira Iizuka, Koichi Nakano, Hayato Kiyomi, Kazuhiro Oda, Tomohiro Isobe
  • Conductive member, and production method therefor
    Patent number: 10400347
    Abstract: To provide a conductive member capable of suppressing an increase in contact resistance, and a production method therefor. To solve the problem by providing a conductive member having a Ni plating layer 3 on the surface of contact parts 2 provided on a substrate 1, an arithmetic average roughness Sa of the surface of the Ni plating layer 3 being 20 nm or more. In the Ni plating layer 3, the full width half maximum of a peak at the position of a Ni (200) plane in an x-ray diffraction diagram is preferably 0.6 or less, and an indentation hardness HIT of the Ni plating layer 3 is preferably 5000 n/mm2 or less.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: September 3, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yosuke Nishikawa, Sayuri Shimizu, Shinichiro Sumi
  • Substrate for biochips and method for producing same
    Patent number: 10363538
    Abstract: A substrate for biochips, in which carboxyl groups are immobilized on a substrate whose surface at least is composed of carbon; and a method for producing the substrate are disclosed. The substrate for biochips comprises a substrate whose surface at least is composed of carbon; and an acrylic polymer having free carboxyl groups in the molecular structure thereof, which acrylic polymer is immobilized on the surface of the substrate. The method for producing the substrate comprises irradiating the substrate whose surface at least is composed of carbon with ultraviolet light during the acrylic polymer having free carboxyl groups in the molecular structure thereof contacts the substrate.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 30, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yasushi Takebayashi, Ryo Morishita, Kei Yamaguchi
  • Magnesium fluoride sintered compact, method for manufacturing magnesium fluoride sintered compact, neutron moderator, and method for manufacturing neutron moderator
    Patent number: 10343951
    Abstract: According to an aspect, a magnesium fluoride sintered compact includes a disc-shaped magnesium fluoride sintered compact having a through hole passing through a center axis of the disc-shaped magnesium fluoride sintered compact. The magnesium fluoride sintered compact has a relative density of 95% or higher.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: July 9, 2019
    Assignees: NIPPON LIGHT METAL COMPANY, LTD., Cancer Intelligence Care Systems, Inc., SINTER LAND Incorporation, Ltd.
    Inventors: Hidaka Furuya, Yoshinori Sugawara, Hideaki Usui, Kazuto Sanada, Masaru Nakamura, Shinichi Takei
  • Joining method
    Patent number: 10335894
    Abstract: A joining method includes a butting process configured to butt a first metal member and a second metal member each having a front surface with various heights to form therebetween a butt portion with various heights; and a welding process configured to apply a friction stirring to the butt portion by a stirring pin of a rotation tool while only the stirring pin of the rotation tool contacts with the first metal member and the second metal member of the butt portion. The welding process may be configured to insert the stirring pin of the rotation tool into the butt portion from front surfaces of the first metal member and the second metal member and apply the friction stirring to the butt portion while an insertion depth of only the stirring pin is kept approximately constant.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: July 2, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Manufacturing method for battery case lid including explosion-proof valve
    Patent number: 10340490
    Abstract: A battery case lid is formed by working a metal plate, and includes a substrate section and an explosion-proof valve formed in the substrate section. The explosion-proof valve has a reduced thickness section thinner than the substrate section, and the reduced thickness section is formed by extending the metal plate by applying pressure while the metal plate is kept unrestrained.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: July 2, 2019
    Assignees: SOODE NAGANO CO., LTD., NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Takayuki Sode, Yukinori Sugiyama, Shinichi Nomura, Masato Kobayashi
  • HIGH STRENGTH ALUMINUM ALLOY, INTERNAL COMBUSTION ENGINE PISTON COMPRISING SAID ALLOY, AND METHOD FOR MANUFACTURING INTERNAL COMBUSTION ENGINE PISTON
    Publication number: 20190186410
    Abstract: An aluminum alloy having excellent high temperature strength and thermal conductivity; and an internal combustion engine piston including the alloy. The aluminum alloy includes 11.0-13.0% Si, ?0.3% Fe, 0.3-2.0% Mg, 2.0-5.0% Cu, 3.0-4.0% Ni, 0.2-1.0% Mn, 0.05-0.4% Cr, and 0.05-0.4% V, with the remainder including aluminum and unavoidable impurities.
    Type: Application
    Filed: August 29, 2016
    Publication date: June 20, 2019
    Applicants: NIPPON LIGHT METAL COMPANY, LTD., ART METAL MFG. CO., LTD.
    Inventors: Izumi YAMAMOTO, Kazuhiro ODA, Hiroshi HORIKAWA, Katsumi FUKAYA, Takashi SEKI, Tadashi WATANABE
  • Aluminum alloy for microporous hollow material which has excellent extrudability and grain boundary corrosion resistance, and method for producing same
    Patent number: 10309001
    Abstract: An aluminum alloy for microporous hollow shape material use constituted by an aluminum alloy which has excellent corrosion resistance and extrudability which keeps down the content of Cu which poses a problem in intergranular corrosion resistance, which maintains the natural potential noble, which adds transition metals which do not obstruct the extrudability is provided, that is, an aluminum alloy which has a chemical composition which contains, by mass %, Fe: 0.05 to 0.20%, Si: 0.10% or less, Cu: 0.15 to 0.32%, Mn: 0.08 to 0.15%, Zr: 0.05% or less, Ti: 0.06 to 0.15%, Cr: 0.03% or less, and balance: Al and unavoidable impurities and has an amount of gas in the alloy billet of 0.25 cc/100 g or less, and a method of production of an aluminum alloy which, produces a DC cast billet.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 4, 2019
    Assignees: NIPPON LIGHT METAL COMPANY, LTD., OKB CO., LTD.
    Inventors: Shigeru Okaniwa, Meitoku Ogasawara, Takao Otaki, Yusuke Seki, Yutaka Kato
  • Aluminum resin bonded body and method for producing same
    Patent number: 10300687
    Abstract: Provided is an aluminum-resin bonded body that expresses excellent bonding strength and does not show a reduction in the strength after a durability test, thus being able to keep the excellent bonding strength over a long period of time. The aluminum-resin bonded body includes: an aluminum substrate formed of aluminum or an aluminum alloy; an oxygen-containing film containing oxygen, the oxygen-containing film being formed on a surface of the aluminum substrate; and a resin molded body formed of a thermoplastic resin composition containing a thermoplastic resin and an additive, the resin molded body being bonded onto the oxygen-containing film, in which the thermoplastic resin composition contains any one or both of: a thermoplastic resin containing an element having an unshared electron pair in a repeat unit and/or at an end; and an additive containing an element having an unshared electron pair.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: May 28, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Masanori Endo, Reiko Takasawa, Miyuki Yoshida
  • Prototype aluminum mold for stampers and method for manufacturing same, stamper and method for manufacturing same, method for manufacturing article, and antireflection article
    Patent number: 10295711
    Abstract: A prototype aluminum mold for stampers that is used to manufacture stampers having a fine irregular surface structure on the surface thereof and containing aluminum and magnesium, wherein the content of magnesium is 0.1% by mass to 3% by mass, the content of silicon is 100 ppm by mass or less, the total content of elements other than aluminum and magnesium is 500 ppm by mass or less, and the number of magnesium silicide particles having an equivalent diameter of 10 nm or more on the surface of the prototype aluminum mold for stampers is 10/1000 ?m2 or less.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: May 21, 2019
    Assignees: Mitsubishi Chemical Corporation, Nippon Light Metal Company, Ltd.
    Inventors: Katsuhiro Kojima, Hiroshi Onomoto, Hiroaki Kita, Kota Shirai, Hiroshi Okada, Kazume Mochizuki
  • High-strength aluminum alloy fin material and production method thereof
    Patent number: 10280495
    Abstract: An aluminum alloy fin material for heat exchanger use having a 35 to 50 ?m thickness, a small springback at the time of corrugation, a suitable strength before brazing enabling easy fin formation, a high strength after brazing, and excellent erosion resistance, self corrosion resistance, and sacrificial anodic effect and a method of production of the same are provided. A fin material containing, by mass %, Si: 0.9 to 1.2%, Fe: 0.8 to 1.1%, Mn: 1.1 to 1.4%, and Zn: 0.9 to 1.1%, further limiting the impurity Mg to 0.05% or less, Cu to 0.03% or less, and ([Si]+[Fe]+2[Mn])/3 to 1.4% to 1.6%, and having a balance of unavoidable impurities and Al. A method of production prescribing hot rolling, cold rolling, intermediate annealing, and final cold rolling.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: May 7, 2019
    Assignees: DENSO CORPORATION, NOVELIS INC., NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Takanori Kokubo, Toshiya Anami, Hayaki Teramoto, Hideyuki Ota, Toshihide Ninagawa
  • Support frame for pellicle
    Patent number: 10281814
    Abstract: A support frame for a pellicle, in which a pellicle film is adhered to the front surface of an aluminum-alloy frame body, and a transparent substrate is adhered to the rear surface of the frame body. A recessed groove is formed in the rear surface of the frame body, the recessed groove extending along the periphery of the frame body, and a vent hole is formed from the outer peripheral surface of the frame body to the inner surface of the recessed groove. With this configuration, deformation of the support frame can be suppressed when the support frame is removed from the transparent substrate.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 7, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hayato Kiyomi, Naoto Komura
  • Method of recovering rare-earth elements
    Patent number: 10246759
    Abstract: Provided is a method of recovering rare-earth elements by performing slight pH adjustment of a leachate, which does not require such significant pH adjustment as in conventional methods, reduces cost and effort, and can efficiently recover rare-earth elements in a bauxite residue in a good yield.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: April 2, 2019
    Assignees: Nippon Light Metal Company, Ltd., The Jamaica Bauxite Institute Limited
    Inventors: Kaoru Sugita, Yasushi Kobayashi, Yoshihiro Taguchi, Wilmon Wallen-Bryan, Worrell Lyew You, Parris A Lyew-Ayee
  • High strength aluminum alloy sheet excellent in bendability and shape freezability and method of production of same
    Patent number: 10221471
    Abstract: 3000-series aluminum alloy sheet which has a high strength enabling application to automobile body panel and excellent in bendability and shape freezability is provided.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: March 5, 2019
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Takeshi Handa, Kiyomi Tsuchiya, Toshiya Anami
  • Aluminum composite material and method for manufacturing aluminum composite material
    Patent number: 10207372
    Abstract: An aluminum composite material includes a first metallic plate, a second metallic plate, and a matrix material that is interposed between the first metallic plate and the second metallic plate and is formed of aluminum powder. Gadolinium oxide particles are dispersed in the matrix material.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: February 19, 2019
    Assignees: Nippon Light Metal Company, Ltd., Nikkeikin Aluminum Core Technology Co., Ltd.
    Inventors: Yusuke Kamimura, Shingo Koizumi, Daisuke Nagasawa, Toshiaki Yamazaki